Title:
PROCESS FOR PRODUCING RESIN MODEL AND PROCESS OF LOST WAX PRECISION CASTING WITH THE RESIN MODEL
Document Type and Number:
WIPO Patent Application WO/2005/070588
Kind Code:
A1
Abstract:
A process for producing a resin model for use in lost wax precision casting, comprising at least a hardened resin layer forming step of injecting two-pack reaction hardening type urethane resin solution (A) of 1 to 3 min pot life, through casting port (4) of resin model forming mold (2) furnished with internal space (3) whose configuration is identical with that of product, into the internal space (3) in a volume amounting to 5 to 20% of the volume of the internal space (3), closing the casting port (4) and rotating the resin model forming mold (2) so that layer (11) of two-pack reaction hardening type urethane resin hardened is formed on the inside wall of the resin model forming mold (2); a resin model forming step of repeating the hardened resin layer forming step 3 to 6 times at intervals of 3 to 5 min so as to effect laminating of hardened resin layers (11), thereby obtaining resin model (12) having internal space (30) provided at a core region thereof; and a demolding step of demolding the resin model (12) from the resin model forming mold (2).
Inventors:
Suzuki, Hidekazu (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Saito, Akio (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Kita, Taro (Shona Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Saito, Akio (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Kita, Taro (Shona Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Application Number:
PCT/JP2004/000597
Publication Date:
August 04, 2005
Filing Date:
January 23, 2004
Export Citation:
Assignee:
SHONAN DESIGN CO., LTD. (11-10, Hashimotodai 3-chome Sagamihara-shi, Kanagawa, 229-1132, JP)
Suzuki, Hidekazu (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Saito, Akio (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Kita, Taro (Shona Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Suzuki, Hidekazu (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Saito, Akio (Shonan Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
Kita, Taro (Shona Design Co. Ltd, 11-10, Hashimotodai 3-chom, Sagamihara-shi Kanagawa, 229-1132, JP)
International Classes:
B22C7/02; B22C9/04; B22C9/10; B29C39/08; B29C41/04; B29C41/22; B29C67/24; B22C7/00; B22C9/04; B22C9/10; B29C39/04; B29C41/04; B29C41/22; B29C67/24; (IPC1-7): B22C7/02; B22C9/04; B22C9/10; B29C39/08
Attorney, Agent or Firm:
Onuki, Kazuyasu (Shineimiyamasu Building 5th Floor, 8-8 Shibuya 1-chom, Shibuya-ku Tokyo, 150-0002, JP)
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